Cargo-edit: providing feedback during "cargo add" operation

[Dowwie]

Currently, "cargo add " operates without providing any stdout feedback to the user that a crate is added to Cargo.toml. Would you please consider following Cargo convention by providing said feedback?

[steveklabnik]

👍 , just like

> cargo build
   Compiling foo v0.1.0 (file:///C:/Users/steve/tmp/splain)

I'd like to see

> cargo add foo
      Adding foo v0.1.0 

unsure if something should go in () after.

[killercup]

Good suggestion, I totally agree. Some notes:

• [ ] Print Adding {name} {concrete_version} by default
• [ ] Consider padding this to align with other cargo output (like @steveklabnik did)
• [ ] Add --quite/-q to suppress this
• [ ] Append (dev dependency) or (build dependency)

[whentze]

Hi there!

I can take a shot at this :smile:

[killercup]

Great! Go for it!

[whentze]

I just implemented this in #190 . The "cargo-style" coloring and padding looks fine, but is a bit ad-hoc.
There is pub code in cargo that handles this sort of printing, but I don't think adding cargo as a dependency just for this is worth it, as cargo is pretty huge.

I also added a similar message for cargo rm.